• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to light-deflecting lamella pairs 7 and 8, 8 and 9 with light-reflecting upper and lower sides between an outer space A and an inner space I. The light-deflecting lamellae consist at least of retroreflectors 10-12, light-deflecting reflectors 23-25 and crossbars 27-29 between retroreflectors 10-12 and light deflector 23-25. The undersides of the reflectors 10-12 are glare-free from the inside when viewed horizontally. A light emission of secondary reflections between the lamella pairs inwards over the undersides of retroreflectors 10-12 is essentially prevented. At least the underside of the slats is concave and light radiation deflected onto the underside of the retroreflectors is deflected either onto the cross member 27-29 or onto the top of the lower slat.
    公开号:CH715053A2
    申请号:CH00783/19
    申请日:2019-06-10
    公开日:2019-12-13
    发明作者:-Ing Helmut Köster Dr
    申请人:Dr Ing Helmut Koester；
    IPC主号:
    专利说明:

    Description [0001] It is known to form light deflection slats which deflect the high sun and deflect the flat sun. A typical form of training shows e.g. DE 19 929 138 A1.
    EP 2 534 329 shows a Z-shaped lamella which, like all other known light-deflecting lamellae with a horizontal lamella position, has a reflection on the underside which can blind the interior user. Such glare arises especially in flat sun when the light reflected on the underside is deflected into the interior in a horizontal direction. It is therefore necessary to paint these slats white or colored on the underside to avoid glare. However, white slats illuminated by the sun with high luminance can also dazzle. That is why dark-colored slats are often used on the underside, which, however, absorb strongly and heat the blind curtains counterproductively.
    DE 10 2014 11 627 A1 shows a lamella which is similar to 10 260 711, but has an additional reflector attachment on the room side, the function of which is to deflect incident solar radiation via the deflection onto the underside of the upper lamella without glare. The disadvantage of this optics is a restriction of the horizontal view between the slats.
    The innovation has set itself the goal of developing a light-deflecting contour that does not dazzle either on the underside or on the top of the slats by essentially not exceeding or falling below certain light exit angles between the pairs of slats due to primary and secondary reflections. It is about, e.g. a horizontal light entry ± 30 ° at least, to be able to avoid for primary reflections.
    Within a Venetian blind curtain, two opposing slats form a reflection system which, depending on the angle of incidence of the sun, has different reactions of the light guidance. The object of the invention is to show construction guidelines in the lamella contour development which primarily indicate the posting of the lamella undersides of the retroreflector and at the same time enable an improved view between the lamellae.
    The task is solved according to. Claim 1.
    According to the task, the innovation enables the. To assign light steering blinds by means of the advantageous construction to similar quality classes, which are known from the DIN for artificial lighting. DIN 5035-7 formulates permissible mean luminance for luminaires or surfaces that can be reflected in screens, whereby the quality classes are better, the steeper the light emission angle or the light emission angle! On the ground level, the development of the light deflection slats is analogous, the luminance using the defined light exit angles from the slat pairs upwards from a parapet area and downwards from the skylight area of a window by designing the slat contour to a permissible level. Measure, restrict and prevent in horizontal direction> ± 30 ° essentially to avoid direct glare from reflected sunlight.
    The undersides of the retroreflectors 10-12 consist of at least one section, this section being concave on the underside (FIG. 3). Radiation deflected from the top of the opposite lamella to the underside of the retroreflector is deflected in FIGS. 2 and 2.1 either to the underside of the traverse 27-29 or to the top of the lower lamella. As a result, the underside of the retroreflector 10-12 is glare-free in the working position of the slats.
    In a further development, the retroreflector 10-12 is characterized on its underside by at least one obtuse-angled selection edge 13-15, which is formed by at least two sections 16-18, 19-21.
    The selection edge 13-15 causes at least on the underside of a first section 16-18 incident, deflected radiation 22 (primary reflection) preferably at an angle smaller than the shadow line (<30 °) on the top of the light guide sections 23-25 lower adjacent lamella can be deflected, and that light radiation 26 deflected onto the second section 19-21 (primary reflection) can be deflected onto the underside of the cross members 27-29 by means of a secondary reflection 34. By means of this light guide in the working position it is achieved according to the invention that, in contrast to the prior art, a flat deflection of light between the pairs of slats in the direction of the interior viewer and thus glare is prevented via the underside of the retroreflectors of the slats 10-12.
    [0011] The pairs of light deflection slats have a preferred light exit angle> 30 ° for primary and secondary reflection on the top of the slats. As a result, there is no glare for the interior user in the horizontal viewing direction in the slat curtain, at least on the slat tops.
    The advantage of the innovation is the possibility of using reflective surfaces on the underside of the slats, so that high luminance contrasts on the underside of the slats, which are perceived as glare, are avoided. The all-round mirroring of the slats also prevents absorption and therefore unpleasant heat development on the louvre slats. Ping-pong effects between the slats, as they occur on white, light-scattering surfaces, are reduced.
    [0013] The figures show the task and the solution:
    CH 715 053 A2
    Fig. 1 shows the vertical section through a facade with the required light exit angles and the angular ranges of the glare control
    Fig. 2 shows pairs of slats in vertical section
    2.1 shows a ray tracing between a pair of slats from FIG. 2
    Fig. 3 shows a simplified slat shape
    Fig. 4 shows a special construction for a roller shutter profile
    Fig. 5 shows the winding of the roller shutter profiles from Fig. 4 on a shaft.
    6.1 -6.3 show the light directing behavior of successive reflections.
    Fig. 7 shows the construction of a slender slat in the side view. Fig. 1 shows the task on an interior 1 with a blind curtain 1. The dotted section 2 shows the glare-free angle range, the angle range 3 shows the glare-free light emission to the ceiling and the angular range 4 down to the working level or floor level.
    Fig. 2 shows the Lichtlenklamellen 7, 8, 9, consisting of retroreflectors 10-12, from Lichteinlenkreflectors 23-25 and trusses 27-29. The reflectors 10-12 in Fig. 2 consist of two sections 16 and 19, 17 and 20, 18 and 21. The sections are in a fixed connection with each other via a fold 13-15. This fold forms a selection edge for impinging primary reflection 26, 32. Primary reflection 32 is deflected onto the upper side 24 of the adjacent lamella and primary reflection 30 is deflected from the underside 20 by a secondary reflection 34 onto the underside of the cross member 28. This results in glare reduction on the underside of the slats for primary reflections. A flat light emission of primary reflections between the pairs of lamellae, which leads to glare on the retroreflector in the prior art, is prevented according to the invention. The light exit is only possible through a tertiary reflection 35 or further reflections 36 and 37. The multireflections result in a reduction and scattering, which then no longer triggers any disturbing effects, so that flatter exit angles into the interior can be accepted for multireflected rays.
    [0016] The individual beam paths result from ideally reflecting surfaces. Since the reflectors always have a scattering characteristic due to roughness, there may be a slightly different, not shown, emission characteristic. Essential to the invention is the shape of the lamella contours or the construction theory, and not the quality of the mirrors or the reflection characteristics of the surfaces. The innovation also extends to colored lacquered slats with high-gloss characteristics, whose mirror-gloss properties can be mastered by the innovation.
    The emission characteristic is defined on the basis of a typical horizontal working position of the slats, with a connecting line between the edge 40 in the middle of the slat and the slat edge 41 to the interior H being arranged horizontally. If the slat edge towards the interior is made longer or shorter and the emission or anti-glare characteristics are met, this may be considered a "working position".
    [0018] In the present case, a shadow line S of 30 ° results between a pair of slats. However, this can also be chosen steeper or flatter. For example, a radiation characteristic for primary reflections on light deflection sections 23-25 of> 30 ° applies. At least the angular range from 0 ° to 30 ° is glare-free according to the invention.
    Fig. 3 shows a simplified lamella shape with a concave on the underside retroreflector 41. Here, the primary reflection 37 penetrating onto this can be deflected by means of a secondary reflection 39 onto the crossmember 40, so that the underside of the retroreflector 41 is glare-free.
    In the example of FIG. 2, in the area of the selection edge, tangent angles ) of α Ί = 143 ° result. Angles from oc-ι = 130 ° to a 2 = 150 ° are typical for the selection edge.
    For flat incident solar radiation 40, there are primary reflections 41 on the undersides of the light deflecting reflectors 24. By shaping the upper sides it can be ensured that the primary reflection hits the underside of the light deflecting reflectors. 24 at an inclination point that preferably forms a secondary reflection 42 in one Turn in angle> - 30 ° to the horizontal. As a result, a total dimming range of min. 85 ° maintained. Only very shallow sunshine can be deflected even flatter at even shallower angles over the underside of the light deflection reflector 23-25. In order to remove glare from these beams too, a bend 49 is provided on the deflection reflector, as shown in the example of the lamella 8 in FIG. 2.
    The example in FIG. 2 shows the dispatch of the underside of the retroreflective lamella section 109. The figure shows the ray tracing of a beam family 100 between a pair of lamellae. The primary reflection 104, 105, 106 and the corresponding secondary reflection 101 on the light-directing section 106 and 103 on the underside of the crossmember 107 are shown. The light radiation 108 on the light-directing section 106 is deflected as a beam 102 into the interior at an angle> 45 ° ,
    CH 715 053 A2 FIG. 4 shows a special slat variant 50-53 of the innovation as a roller shutter. The individual slats 50-53; have on their underside the typical design of the selection edge 61-64 explained in FIG. 2. The tops of the retroreflectors are simplified as a convex curvature. The cross members and the light deflecting reflectors 69-71 correspond to the upper side contour of FIG. 2. The lower side contours 72-75 are arranged flatter than in FIG. 2 and are concave in shape. The lamellae are physical and are e.g. extruded from PVC or aluminum as rods.
    The slats form a slat tip 54-57 on the solar radiation side A and on the interior side I a blunt edge D on which a pressing element 58-60 e.g. is applied in the manner of a narrow bar or rail. The pressing element fixes e.g. by riveting or screwing a band 80 that connects all the slats to form a flat roller shutter. As shown in FIG. 4, this can be wound left or right onto a shaft 70. Due to the weight of the slats hanging on the belt, the slats stand up horizontally. In the lower area of the roller shutter, the slats are tilted slightly due to the reduced pulling force. This is desirable to allow a view of the street level from the inside.
    5 is wound up on a shaft 81 in that a guide element 100 sweeps the slats flat together. The terminal strips arranged on the interior can protrude at the ends and run in guide rails, which also prevent the slats from tipping over.
    If the slats are used as blind slats, they are either threaded in conductor cords or flanged in a known manner at the edges and threaded using loop cords, which e.g. are hung in eyelets. Alternatively, the loop cords can also be hung in horseshoe punchings that are inserted in the area of the slat edges. The blinds can then be controlled or opened manually or by a motor as usual.
    6.1 to 6.3 show a further development of the lamella from FIG. 2. The light deflecting reflector 200 is arranged approximately horizontally and is supplemented by a reflector 201 which is bent upwards as an upturn.
    6.1 shows incident solar radiation at an angle of 50 ° and the primary reflection on the underside of the upper lamella and the light deflection at the deflection reflector 200 on an interior ceiling.
    6.2 additionally shows the secondary reflection. 6.3 also shows the tertiary reflection and makes it clear that the radiation onto the retroreflectors 203, 204 is reflected back into the outside space after multi-reflections without triggering glare in the interior. The beam path 205 shows that light entering the slat underside is deflected steeply downwards without glare. According to the task, there is no horizontal entry of light that could lead to glare, as represented by the glare-free angular range 206.
    The upturn 202 also serves to deflect flat solar radiation incident between the slats. A slat contour according to Fig. 6.1-6.3 enables a very flat slat in the side view with a view of 78% between the slats and a shadow line S of 30 °. For this purpose, the light deflection reflector is also arranged approximately horizontally. “Approximately” means that a chord is arranged at an angle of <10 ° through the end points of the light deflection reflector. This also ensures that radiation 205 can be deflected downwards without glare onto the working level of a work station near the window.
    [0031] As usual, all the slats can also be formed with a rim. Fig. 7 shows the peculiarity of the slats from Fig. 6.1-6.3. The lamella edge 2, 10 to the outside space cuts the light deflecting reflector 212 at the intersection 211 on a horizontal H. A horizontal line through the lamella edge 214 cuts the fold edge 213 between the cross member 216 and the retroreflector 215. The reflector 230 is so flat that on the one hand it deflects flat sun 220> 30 ° between the slats in a beam path 221 into the interior. Somewhat steeper sun 225 is deflected onto the underside of the light deflecting reflector 226 and deflected downward by this, steeper and glare-free> 30 °. The slat is thus in the. According to the invention, angles H ± 30 ° are also glare-free for these beams.
    权利要求:
    Claims (9)
    [1]
    claims
    1. pairs of light deflection slats (7 and 8, 8. and 9) for blinds with light-reflecting top and bottom sides between an outside space (A) and an inside space (I), consisting at least of
    Retroreflectors (10-12), light deflection reflectors (23-25) and trusses (27-29) between the retroreflector (10-12) and light deflection reflectors (23-25), wherein
    - The undersides of the retroreflectors (10-12) are glare-free when viewed horizontally from the inside (!) in the curtain and where
    - A light emission of secondary reflections due to high angles of incidence> 40 ° between the pairs of slats (7 and 8, 8 and 9) inwards (I) via the undersides of retroreflectors (10-12) is essentially prevented and
    - At least the undersides of the retroreflectors (10-13) consist of at least one section, and wherein
    - At least this section is concave on the underside and
    - from the convex upper side (21) of the retroreflectors (10, 11, 12) to the concave underside of the retroreflectors (19, 20, 21) opposing lamellae deflected primary reflection (30, 37) essentially by means of a secondary reflection (34) on the Underside of the crossbeams (28, 40) can be deflected and / or onto the crossbeams (28, 40)
    CH 715 053 A2 deflected primary reflection can be deflected by these by means of a secondary reflection onto the undersides of the retroreflectors (10, 11, 12).
    [2]
    2. pairs of light deflection lamellae according to claim 1, characterized in that the retroreflectors (10-12) are concave at least on the undersides and are formed by folding at least two sections (16, 19 and 17, 20 and 18, 21) and the fold edges Form selection edges (13-15) so that primary reflections can be deflected either to the crossbeams (27-29) or to the top of the lower slats.
    [3]
    3. pairs of light deflecting lamellae according to claim 2, characterized in that the tangents (t) in the area of the selection edges (13-15) form an internal angle (a) of a> 125 ° <160 °, preferably 135 ° to 150 °.
    [4]
    4. pairs of light-deflecting lamellae according to claim 2, characterized in that at least the underside of a first light-directing section (16-18) of the retroreflectors (10-12) is inclined so flat that primary reflections (32) impinging on this section essentially onto the upper sides of the light-deflecting reflectors (23-25) can be deflected.
    [5]
    5. pairs of light deflecting lamellae according to claim 1, characterized in that the light deflecting reflectors (200) have an upstand (201) so that flat light irradiation on the upstand (201): can be caught and deflected in the direction of the outside space and that the light deflecting reflectors 200 are approximately horizontal at an angle < 10 ° are arranged.
    [6]
    6. pairs of light-deflecting lamellae according to claim 1, characterized in that the light-deflecting lamellae (50-53) have contour profiles that differ from one another on their upper and lower sides.
    [7]
    7. pairs of light guide slats according to claim 6, characterized in that the light guide slats (50-53) have tips (54-57) on the irradiation side and upper and lower sides spread to the interior (I), so that the upper and lower sides to the interior ( I) form a distance (D) to each other.
    [8]
    8. light-deflecting lamellae according to claim 7, characterized in that pressure elements (58-60) are attached to the interior side (I) of the light-deflecting lamellae, are clamped into the drawstrings (80) and connect a plurality of light-deflecting lamellae (50-53) to one another, so that there are flat curtains that can be wound on shafts (70) and used as roller shutters.
    [9]
    9. Use of the light guiding slats according to one or more of the preceding claims as blinds, in that the individual light guiding slats are kept at a distance from one another by means of conductor or loop cords and can be pulled up and / or the angle of incidence of the sun can be tracked and pivoted.
    CH 715 053 A2

    CH 715 053 A2


    CH 715 053 A2



    CH 715 053 A2
    类似技术:
    公开号 | 公开日 | 专利标题
    EP0461137B1|1995-05-17|Light deflecting system for lighting an indoor area
    EP0606543B1|1999-08-04|Glare protection device
    DE102010005054A1|2011-07-21|Z-shaped blind slats for daylight redirection
    DE102013019295A1|2014-06-18|Sun protection systems with fold-shaped lamellas
    EP0956423B1|2003-03-26|Device for protection against the sun, of venetian blind type
    DE4239003C2|1995-03-09|Sun protection with light-guiding properties
    DE4442870C2|2003-10-16|Slat for precise control of direct sunlight
    DE2615379A1|1977-10-27|Window prism element screen controlling glare and radiation - uses interior oriented opaque and outwards vertical and downwards horizontal surfaces to diffuse light
    AT521340B1|2021-01-15|Glare-free daylight slat blinds
    EP0400662A1|1990-12-05|Venetian blind
    DE102014011627A1|2016-02-11|LIGHT STEERING DEVICE
    DE19929138A1|2000-01-13|Sunshade-blind arrangement
    DE10260711B4|2008-01-24|Glare-free blinds
    DE19543811A1|1997-03-20|Stepped lamella for light radiation control
    EP0303107B1|1993-06-16|Antiglare device
    DE10016587B4|2012-06-28|Light steering system for the artificial and daylight illumination of an interior
    DE102019207766A1|2020-12-03|RETRORE-REFLECTIVE WINDOW CURTAIN 2
    DE102019206495B4|2021-09-09|RETRORE-REFLECTIVE WINDOW CABINETS
    DE102019206497A1|2020-01-02|DICHOTOME, BIFOCAL LIGHT-STEEL CLAMP SYSTEMS
    EP1243743B1|2006-10-04|Lamella for a blind screen
    EP0566524A2|1993-10-20|Lamellar blind for shading of rooms
    DE102009056362B4|2012-10-04|Light-deflecting blind with prismatically shaped louvre surfaces for the deflection and deflection of sunlight
    DE102014113631B3|2015-11-05|Daylight system
    DE102019207768A1|2020-12-03|BIFOCAL WINDOW hangings
    DE202011101237U1|2011-08-30|Slat for sun protection and daylight steering systems
    同族专利:
    公开号 | 公开日
    AT521340A2|2019-12-15|
    DE102018209297B3|2019-12-12|
    AT521340B1|2021-01-15|
    AT521340A3|2020-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2141474B|1983-06-17|1987-03-04|British Res Agricult Eng|Louvred reflector|
    DE19929141A1|1998-06-26|2000-04-27|Helmut Koester|Light deflecting lamellae consist of a partially toothed surface, where the top of the light lamellae concentrate retro-reflected rays|
    US6318441B1|1998-12-18|2001-11-20|University Technologies International Inc.|Window blinds|
    DE10260711B4|2002-12-23|2008-01-24|Köster, Helmut, Dr.-Ing.|Glare-free blinds|
    ES2537263T3|2005-04-28|2015-06-03|Griesser Holding Ag|Reed blind|
    DE102008037358A1|2008-08-12|2010-02-25|Roma Rolladensysteme Gmbh|shading device|
    AU2009100562B4|2009-06-10|2009-09-03|Liftmaster Electronics Pty Ltd|Blind slat|
    DE102010005054A1|2010-01-20|2011-07-21|Köster, Helmut, Dr. Ing., 60437|Z-shaped blind slats for daylight redirection|
    DE102010010492A1|2010-03-06|2011-09-08|Helmut Köster|Light guiding profile for louver curtains as sun blind and room lighting with daylight, has partial area as retro-reflector and partial area for light guidance in interior|
    DE102010033938B4|2010-08-11|2013-06-20|Julia von Chamier|Light guide and reflector system for day, sun and artificial light|
    CZ2011472A3|2011-08-03|2013-01-23|Isotra A.S.|Shaped slat for Venetian blinds, especially for exterior horizontally situated Venetian blinds|
    DE102014011627A1|2014-08-06|2016-02-11|Helmut Köster|LIGHT STEERING DEVICE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018209297.4A|DE102018209297B3|2018-06-11|2018-06-11|Glare-free daylight slats|
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